Finding the Fourth Proportional to 144,190,903.82, 216,299,652.78 and 47,147,109.08
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Solution
The fourth proportional to 144,190,903.82, 216,299,652.78 and 47,147,109.08 is: 70,725,011.45
Step by Step Solution
- Step 1: Write the proportion equation
144,190,903.82 : 216,299,652.78 = 47,147,109.08 : x - Step 2: Convert to fraction form
144,190,903.82/216,299,652.78 = 47,147,109.08/x - Step 3: Cross multiply
144,190,903.82x = 216,299,652.78 × 47,147,109.08 - Step 4: Simplify right side
144,190,903.82x = 10,197,903,323,584,784 - Step 5: Solve for x
x = 10,197,903,323,584,784/144,190,903.82 - Step 6: Final answer
x = 70,725,011.45
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.